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Basic studies of isolation of uncultured iron-oxidizing bacteria, and mechanism of forming iron oxides produced by the bacteria for producing novel functional materials.

Research Project

Project/Area Number 15H06654
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Applied microbiology
Research InstitutionJapan Women's University

Principal Investigator

Suzuki Tomoko  日本女子大学, 理学部, 助教 (30623772)

Project Period (FY) 2015-08-28 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords鉄酸化細菌 / Leptothrix ochracea / Gallionella ferruginea / 細菌 / 鉄酸化 / 微生物 / 難培養性細菌
Outline of Final Research Achievements

In this study, I aimed to isolate and look for a culture methods for iron oxidizing bacteria that produced tubular or corkscrew-shaped iron oxides outside the cell, and then, to clarify the mechanism of formation of uniquely-shaped iron oxides. I searched for the habitat of iron-oxidizing bacteria, and I found a well with floating brownish flocs consists of tubular iron oxides. However, I did not get permission for sampling. On the other hand, the corkscrew-shaped iron oxides obtained from enrichment culture of Gallionella ferruginea were analyzed by using LM, SEM, SEM-EDX, HRTEM-FFT. Shortly-pitched long fiber iron oxides formed in the synthetic medium with different shape, structure and elemental composition from naturally-formed the corkscrew-shaped iron oxides. FFT pattern with few spots indicates microcrystalline. Our results showed that novel functional materials could be produced through culturing in different media.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Annual Research Report
  • Research Products

    (6 results)

All 2016 2015

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (3 results) (of which Invited: 3 results)

  • [Journal Article] Abiotic deposition of Fe complexes onto Leptothrix sheaths2016

    • Author(s)
      Tatsuki Kunoh, Hideki Hashimoto, Ian R. McFarlane, Naoaki Hayashi, Tomoko Suzuki, Eisuke Taketa, Katsunori Tamura, Mikio Takano, Mohamed Y. El-Naggar, Hitoshi Kunoh, Jun Takada
    • Journal Title

      Biology

      Volume: 5(2);26 Issue: 2 Pages: 26-26

    • DOI

      10.3390/biology5020026

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Biological and physicochemical characters and functions of amorphous iron oxides produced by iron-oxidizing bacteria at ambient temperature in hydrosphere2016

    • Author(s)
      Jun Takada, Hideki Hashimoto, Tomoko Suzuki, Hitoshi Kunoh
    • Journal Title

      Journal of the Japan Society of Powder Metallurgy

      Volume: 63(10) Pages: 869-875

    • NAID

      130005249064

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Direct adherence of Fe(III) particles onto sheaths of Leptothrix sp. strain OUMS1 in culture2016

    • Author(s)
      Tatsuki Kunoh, Hideki Hashimoto, Tomoko Suzuki, Naoyuki Hayashi, Katsunori Tamura, Mikio Takano, Hitoshi Kunoh, Jun Takada
    • Journal Title

      Minerals

      Volume: 6(1) Issue: 1 Pages: 4-4

    • DOI

      10.3390/min6010004

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 鉄酸化細菌Gallionella ferrugineaがつくる酸化鉄の材料特性と培養による酸化鉄材料生成2016

    • Author(s)
      鈴木智子
    • Organizer
      BICシンポジウム2016 バイオ周辺領域とイメージングとの関わり
    • Place of Presentation
      東京都 日本女子大学
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Structural and physicochemical analyses of iron oxides produced by iron oxidizing bacteria Gallionella ferruginea and Leptothrix ochracea2015

    • Author(s)
      Tomoko Suzuki
    • Organizer
      Interuniversity Workshop on Biological Responses to External Stimuli
    • Place of Presentation
      東大阪市、近畿大学
    • Year and Date
      2015-12-15
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] 鉄酸化細菌がつくる酸化鉄の構造と物理化学的解析2015

    • Author(s)
      鈴木智子,橋本英樹,久能均,高田潤
    • Organizer
      2015年度日本地球化学会年会,特別セッション「S02 鉄の地球微生物学と地球化学」
    • Place of Presentation
      横浜市、横浜国立大学
    • Year and Date
      2015-09-17
    • Related Report
      2015 Annual Research Report
    • Invited

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Published: 2015-08-26   Modified: 2018-03-22  

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